> The benefit is continuous zoom, but the pitfall is more server side computation and hence cost. I haven't tested this with dynamic tiles served from PostGIS,

> The benefit is continuous zoom, but the pitfall is more server side computation and hence cost. I haven't tested this with dynamic tiles served from PostGIS, but with static tiles served from S3 it's quite the opposite! There's an initial cost to generating tiles, but once they're generated, you can host them on S3 with zero server cost.